<!DOCTYPE html>

<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>login</title>
</head>

<body>

<form action="/login" method="post">
    <div>
        <label for="username">username:</label>
        <input type="text" name="username" id="username">
    </div>

    <div>
        <label for="password">password:</label>
        <input type="password" name="password" id="password">
    </div>

    <div>
        <label for="age">age:</label>
        <input type="number" name="age" id="age">
    </div>

    <div>
        <input type="submit" value="登录">
    </div>
</form>

</body>

</html>